Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m
25. Epidemiology2h 24m

8. Eukaryotic Cell Structures & Functions

Endomembrane System: Protein Secretion

Microbiology

8. Eukaryotic Cell Structures & Functions

Endomembrane System: Protein Secretion

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Multiple Choice

Which of the following is most likely to have the greatest concentration of smooth endoplasmic reticulum?

A cell that secretes enzymes.

A cell that destroys pathogens.

A cell that makes steroid hormones.

A cell that engages in photosynthesis.

A cell that manufactures proteins.

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Verified step by step guidance

Understand the function of the smooth endoplasmic reticulum (SER): The SER is primarily involved in the synthesis of lipids, including steroid hormones, metabolism of carbohydrates, detoxification of drugs and poisons, and storage of calcium ions.

Identify the primary activities of each cell type mentioned: A cell that secretes enzymes is likely involved in protein synthesis, a cell that destroys pathogens is likely involved in immune responses, a cell that makes steroid hormones is involved in lipid synthesis, a cell that engages in photosynthesis is involved in converting light energy to chemical energy, and a cell that manufactures proteins is involved in protein synthesis.

Relate the function of the SER to the activities of each cell type: The SER is most abundant in cells that are involved in lipid synthesis and metabolism, such as those that produce steroid hormones.

Determine which cell type relies most heavily on the SER: Since the SER is crucial for lipid and steroid hormone synthesis, a cell that makes steroid hormones would have a high concentration of SER.

Conclude that the cell type with the greatest concentration of smooth endoplasmic reticulum is the one that makes steroid hormones, as this activity directly involves the primary functions of the SER.